Spray mast mounting



Aug. 14, I951 R- D.

MALIN SPRAY MAST MOUNTING Filed Oct. 1947 2 Sheet'sSheet 1 PAL/ H D MAL/N INVEN TOR.

Aug. 14, 1951 R. D. MALIN 2,564,439

SPRAY MAST MOUNTING Filed 001;. l, 1947 2 Sheets-Sheet 2 y w w w mm & N .I m MAW m 01W. a w M a z A Z 2 on 4 z z f M, 2 w W 0. MM A M m A i i I Patented Aug. 14, 195i Food Machinery and Chemical Corporation, a corporation of Delaware Application October 1, 1947, Serial No. 777,340

7 c ai (01. 299 12) ...This invention relates to spray rigs employed for spraying orchards with insecticides and more particularly to spray masts carried b said rigs. A spray mast ofthe character mentioned usually carries a series of nozzles spaced vertically from each other along the mast, These nozzles are supplied with liquid through the mast/itself and it is desirable to control the direction in which the nozzles point in a horizontal plane by rotation of the mast itself and to provide a control by which the vertical angle of the nozzles may also be governed during the operation of the rig equipped with this mast.

. When moving the rig on a highway or when storing the same, it has been found highly desirable to dismount the mast or provide a hinged coupling on the same near its lower end so that the mast maybe laid horizontally on the rig just above the top of the tank. I

It is an object of this invention to provide a spray mast including a novel and inexpensive means of mour ting said mast on a rig which will facilitate operation of the mast in the manner above described and also provide for the mast being readily dismountedfor purposes of travel or storage, and remounted on the rig in a short time and by a single person.

It is another object of the invention to provide such a spray mast and mounting therefor in which means is provided for locking the mast in any desired rotational position in said mountmg.

The manner "of accomplishing the foregoing objects as well as further'objects' and advantages will be made manifest in the following description taken in connection with the accompanying drawings in which:

Fig. 1 is a rear elevational view of a spray rig with which is incorporated a preferred embodiment of the present invention.

' Fig. 2 is'an enlarged vertical sectional view taken on the line 2--2 of Fig. 1.

Fig. 3 is a. horizontal sectional view taken on the line 33 of Fig. 2.

Fig. 4 is a horizontal sectional view taken on the line 44 of Fig. 2.

1 Fig. 5 is a fragmentary sectional view taken on the line 5--5 of Fig. 2 and illustrating the socket clamp of the invention.

Referring specifically to the drawings, the invention is there shown as embodied in a spray rig l0 having a mast socket H in which is mounted a spray mast l2. v v

The rig In comprises a frame [3 supported on wheels I 4 and adapted to be hitched while in use to a farm tractor. Supportedon the rig frame 13 is. a. spray solution tank I5 and an operators platformlli. 7

.lThe socketll has .a tubular. body 20 which is integrally united withabase plate 2| and three reinforcing webs 22, the plate 2| being rigidly united with the platform IS in parallel spaced relation therewith by four. posts 23. This holds the tubular body 20 of the mastsocket ll uprightposition on the rig [0 as shown in Figs .l andv2r .The tubular body 20 of the socket II has a slot 24 which extends from the upper end thereof to a point near the lower end of the body. The latter also has an internal shoulder 2 5 provided therein as shown in Fig. 2, this shoulder being formed bye. split ring welded to the insideof the tubular body 20. vWelded to the upper end of the tube 20 on oppqsitesides of the slot 24 are lugs 29 and 3110f a clamp'3 l formed by a screw 32 freely extending througha hole in lug 30 and serewing into threads provided in a smiiiar hole in the lug 2 9. By the operation of this clamp, the upper end of th'etube 29- may be constricted or relaxed at the will of the operator for a purposeto be made clear hereinafter. V v

Welded to the exterior of the tube 20 is a bracket 33 supporting a valve 34 which is con,- nected by a hose 35 tothe solution supply tank IS.

The spray mast 12 maybe any multiple-gun mast suitablefor .use with a spray rig but is shownherein as comprising a Stockdale" mast, a detailed disclosure of which is contained'in the co-pending applicationof HarryC. Stockdale, Serial No. 653,990, filed March 13, 1946 one Spray Mast, now Patent No. 2.511.021.

The mast lZdiffers from that shown in the co: pending application only in its being equipped with a lever 40 for moving nozzles 4! thereof horizontally and vertically to determine the direc tion in which spray is discharged from these nozzles. a I

The spray mast I2 is also equipped with a handle 42 which the operator, standing on the platform l6, may hold to with one hand while the otherhand is used in actuating the lever 40.

The spray mast 12 base. main mast tube a lower portion of which is reinforced by a smaller tube 5| which snugly fits the inner diameter of the tube 50 and is welded therein.

at its lower end the tube 50 is threaded 'to connect with a liquid transmitting swivel' or stuffing box 53 which includesa sliell154 113:

upper end of which has an internally threaded bore 55 to receive the tube 50 and has an external shoulder 56 provided thereon. The bore 55 has a counter-bore 51, the mouth of which is threaded.

Extending into the counter-bore 51 is a pipe 59 having an external shoulder 60 which is pressed against the upper endof the counterebore. Pipe 59 is surrounded bya gland 62- wh-ich is-screwed into the lower end of the counter-bore 5! to compress packing 63 into this space between the pipe 59 and the counter-bore.

The lower end of the pipe 59 is connected by an elbow 64 to a hose nipple'65 which is connected by a flexible hose 66'- to the valve 34.

of the pipe 59 with the stuffing box 53 and the mast; a stufiing box provided upon the lower end of said mast; a spray liquid supply pipe, having a right angle turn therein, and swivel-connected coaxially with said mast through said stufiing Snugly receiving the stuffing box 53 and secured thereto just beneath the shoulder 55 by set-screws I0 is a collar 1 I which rotatably rests upon the internal shoulder 25.

Surrounding the spray mast tube 50 at the upper end of the .tube lll is a cap whichcovers the upper end of. thisdtubeand extends into ;the tube so as to cooperate with the collar 1 1 tin hold: ingthe spray mast tube :50 .in .co-axial alignment with thesocket tube 20.

Operation In the drawings-the mast I 2-is shown as :installed in the'socket -l l -ready--for.operation. The collar 1-! is shown as :resting on the internal shoulder 25 and the cap 15 is shown as resting on the upper end of the tube 21). -Both-collar-and capare shown as secured to the spray mast I2 so as to rotate therewith when this is turned by manipulation of the-lever 40;

-In this arrangement,-the supporting of the weight of the spray mast 42 might be shared by the cap 15 but it has been-found-preferable in practice for this cap to'be set-upon-the mast'tube 50 so that when the mast is mounted in'the socket,

the weight is borne entirely by the collar 'H.

"When 'it is desired to dismount the-mast l2 the screw 32 is unscrewed from the-threaded-lug 30 and withdrawn from theother *lug. The operator then-stands-on the tank l5-close to the mast l2 and lifts this directly upward out of the socket tube 20. The hose nipple 65 slides upwardly in theslot 2'4 and-the-collar l l and-cap l5 readily slide upwardly out of this tube.

The screw fl is tethered by -a suitable chain so that this will not be lost.

with the hose nipple guided by the slot -2-4 and "box, saidmast-being removably insertable into said socket'with-said pipe extending out through said slot; a pair of collars spaced a substantial distance apart on said mast and engaging said socket to centralize said mast therein, at least one of said collars engaging said socket to support the weighteof said mast on said socket; .and means on said -frame forsupplying sprayliquid tosaid pipe. 1 v '-2.-'A combination as-in-claim 1 in which an internal shoulder is provided in said socket to be engaged by -one ofsaid collars -for-the support of saidmustonsaid socket. r I I -3. A combinationas in claim -1 in which an internal shoulder is provided saidsocket to be engaged by the lowerof said col-larsio'r the support of said mast on said socket. a I 4. A-combination as inclaim -'l in which said stufling box has an outer sleeve, the upper end of said sleeve being tapped to threadedlyreceive the lower end of said mast; an external fiange provided on said sleeve,-the lower of said collars fittingupwardly'over said sleeve and against said fiangef and a shoulder-extending inwardly trom said socket against which shoulder said lower collar rests 'to supporttheweight ot-said -mastpn said socket; 1 7 '5. A combination as i-n claim-1-in-which'a-yalve for controllingthesupply of spray liquid to said pipe is mounted onsaidsoeliet above the level halfway between the 'topof said socket andsaid pipe; and a flexible hose-connecting said valve with said pipe. e

6; A'combination' as "inclaim 1 -i-n'w-hich said collars ar bo fi edfl onis r mas e engage said socket to supportsaid mast on the latter; in which said collars are rotatablerelative to said socket while thus supporting saidmast; and --a handle extending iaterailyirom said ma'st for rotating thesameinsaidsocket. Y I v *l. A combination as in claim l in whichjtlie upper of said collars extends downwardly a r-,0 the u e fi d A i sa d Socke whe ai mee is supported in the latter; and a clamprf onconri in the pp nd ,Qffii 50 K6 P- tionally secure said upper collar and'said mast against rotation'in said socket. 1 i HN- REFERENCES Q I -'1;ED I The following re erences are of ,record in the file of this patent:

UNITED STATESJEAIEENTS 

